7643992103 has 4 divisors (see below), whose sum is σ = 8338900488. Its totient is φ = 6949083720.

The previous prime is 7643992043. The next prime is 7643992117. The reversal of 7643992103 is 3012993467.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 7643992103 - 2²⁶ = 7576883239 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7643992703) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 347454176 + ... + 347454197.

It is an arithmetic number, because the mean of its divisors is an integer number (2084725122).

Almost surely, 2^7643992103 is an apocalyptic number.

7643992103 is a deficient number, since it is larger than the sum of its proper divisors (694908385).

7643992103 is a wasteful number, since it uses less digits than its factorization.

7643992103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 694908384.

The product of its (nonzero) digits is 244944, while the sum is 44.

The square root of 7643992103 is about 87429.9268157077. The cubic root of 7643992103 is about 1969.8813866073.

The spelling of 7643992103 in words is "seven billion, six hundred forty-three million, nine hundred ninety-two thousand, one hundred three".